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or vonWINxnL, ANDKURT M GERMANY, asszenons 'ro wmrnnor CHEMICAL co rnnmacnuncari rnonuom- No Drawing.

This invention relates to the manufacture of a new pharmaceutical product being a double compound of 1.2-cyclohexenylethyl-barbituric acid having the formula and 1 phenyl 2.3 dimeth 1- 4 dimethylamino-5-pyrazolon having t e formula The new compound is awhitishcrystallized product soluble in alcohol. It has proved to be a valuable hypnotic and analgetic; an avera 1/2 gram.

. It is tloned compone EISENBURG, OF ELBERFELD, MPANY, ING, OF NEW YORK,

Application filed May 15, 1925 Serial No. 30,620.

ge single dose being about produced by allowing the abovemennts to react on each other either in solution or by melting them together.

For instance we 236 1parts by weight of 4| enylet added thereto.

proceed as I follows as 1 .2-cyclohexyl-barbiturio acid are dissolved in ether and an ethereal solution of l-dimethylamino-l-phenyl- 2.3-dimethyl-5-pyrazolon is By concentrating the mix- 0 ture the new complex compound separates. It crystallizes from benzene in the shape of prisms melting at l34135 e claim The herein described compound consisting 45 of 4| 1.2-cyclohexenylethylbarbituric acid and 4-dimeth methyl-5-pyra'zo a whitish coloration ing at 134-135 ylainino-1 -phenyl-2.3-di the compound having soluble in alcohol, melt- C. having strong analgetic .0

Ion,

and soporific properties, substant ally as described.

In testimony set our hands.

WERNER whereof we have hereunto SCHULEMAN N KURT MEISENBURG. 

